| article html file updated | 9 February 2020 07:11 CET | Update | https://www.mdpi.com/2227-9067/5/2/29 |
| article html file updated | 30 September 2019 22:30 CEST | Update | - |
| article html file updated | 1 May 2019 17:16 CEST | Update | - |
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| article html file updated | 29 March 2019 00:29 CET | Update | - |
| article html file updated | 14 March 2018 08:34 CET | Update | - |
| article html file updated | 24 February 2018 09:53 CET | Original file | - |
| article xml uploaded. | 24 February 2018 09:52 CET | Original file | https://www.mdpi.com/2227-9067/5/2/29/xml |
| article pdf uploaded. | 24 February 2018 09:52 CET | Updated version of record | https://www.mdpi.com/2227-9067/5/2/29/pdf |
| article pdf uploaded. | 21 February 2018 14:51 CET | Version of Record | https://www.mdpi.com/2227-9067/5/2/29/pdf-vor |
